William Brennan vs. Phil Marchildon — Career Comparison

On the career pitching numbers, Phil Marchildon posted a stronger line than William Brennan. Phil Marchildon posted stronger numbers in ERA (3.93 vs 5.18) and WHIP (1.456 vs 1.849). By the career numbers, Phil Marchildon had the better of this comparison — though ERA and WHIP alone don't account for era, park factors, or the defenses each pitcher worked behind.